Abstract: Chromatography pipette tip having a first vessel and a second vessel which is open at two opposite ends and which, in each instance, has a bottom orifice via which a sample liquid can either be sucked in or expelled. The two vessels are fluidically and sealably connected to one another. A reaction matrix is arranged in one of the two vessels, through which reaction matrix the sample liquid is pushed by means of a pipettor to which the chromatography pipette tip is connected when used as intended. The sample liquid is drawn in and dispensed in opposite directions by the chromatography pipette tip and flows through the reaction matrix only in one direction.

Abstract: A device is provided by means of which biomolecules in samples in a volume range from <1 ?l to 500 ?l can be received, treated and stored in a quick, reproducible and loss-free manner as easily, effortlessly and practically as possible, and without any risk of damaging the device. The device includes sample vessels that are configured, in terms of size and shape, as dimensionally and positionally stable capillaries that are open at both ends, the longitudinal walls of which are completely or partially made of a semi-permeable membrane.

Abstract: A device is provided by means of which biomolecules in samples in a volume range from <1 ?l to 500 ?l can be received, treated and stored in a quick, reproducible and loss-free manner as easily, effortlessly and practically as possible, and without any risk of damaging the device. The device includes sample vessels that are configured, in terms of size and shape, as dimensionally and positionally stable capillaries that are open at both ends, the longitudinal walls of which are completely or partially made of a semi-permeable membrane.

Abstract: A method for characterizing highly parallelized liquid handling technology using microplates and test kit for carrying out the method. Possibilities for characterizing a multi-channel or many-channel handling technology are known in principle. However, especially with regard to more highly parallelized devices and very small volumes, particularly under conditions corresponding to the actual application conditions, these possibilities were relatively expensive and presented problems especially with respect to the accuracy of evaluation and with respect to correctness and precision. The present method enables a more economical and very exact characterization for applications of this kind.

Abstract: A method for characterizing highly parallelized liquid handling technology using microplates and test kit for carrying out the method. Possibilities for characterizing a multi-channel or many-channel handling technology are known in principle. However, especially with regard to more highly parallelized devices and very small volumes, particularly under conditions corresponding to the actual application conditions, these possibilities were relatively expensive and presented problems especially with respect to the accuracy of evaluation and with respect to correctness and precision. The present method enables a more economical and very exact characterization for applications of this kind.